Dear All,
Please introduce that I am new member here.
I have to study of pipe stress on buried flow line which made from API 5L-X52 with 2 mm inconel 825 internal clad.
I have to know how to input material properties of API 5L-X52 with 2 mm inconel 825 internal clad. The difficulty is the material is cladded, so we have to combine 2 material into one material which input to Caesar model. Does someone have experience about it

As we know that for buried pipe, intensification stress will happen on bend section. Our simulation result with simplify pipe material to AP 5L-X52 (without cladd), buried bends overstresses due to thermal expansion, and one solution is make expansion loops with UNBURIED bends. But, the cost for install it is expensive and big work.

Someone maybe has experience with other idea. Sharing your knowledge is very appreciated.

Thanks,
Agung C